I just did some shopping around for insurance, as I'm now planning to go hang out in Malta for about 6 months while I wait for Asia to open up again. It's $180 for 6 months of $100,000 coverage. That's hardly going to break the bank.
Even if they didn't mandate insurance for all visitors, why in the world would you ever travel internationally during a pandemic without health insurance? You'd have to be a total moron to do that.